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Which one of the following is wrongly matched? [NEET Kar. 2013]
- a)Nostoc-Water blooms
- b)Spirogyra-Motile gametes
- c)Sargassum-Chlorophyll c
- d)Basidiomycetes-Puffballs
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which one of the following is wrongly matched? [NEET Kar. 2013]a)Nosto...
Cyanobacteria, e.g., Nostoc, grow in such abundance as to form water blooms. Sargassum belongs to brown algae which possess chl a, c, carotenoids, xanthophyll and a characteristic brown pigment, fucoxanthin. Commonly known forms of basidiomycetes are mushrooms, bracket fungi or puffballs. In Spirogyra gametes are non-flagellated (non-motile) but similar in size. They show amoeboid movements.
Most Upvoted Answer
Which one of the following is wrongly matched? [NEET Kar. 2013]a)Nosto...
Spirogyra does not have motile gametes. Instead, it has non-motile gametes that fuse to form a zygote.
Explanation:
- Nostoc is a genus of cyanobacteria that is commonly found in water bodies. They form colonies that are visible as slimy masses on the surface of the water. These colonies are called water blooms or blue-green algae blooms.
- Spirogyra is a genus of filamentous green algae. They are characterized by their spiral-shaped chloroplasts. Spirogyra reproduces both sexually and asexually. In sexual reproduction, non-motile gametes are produced that fuse to form a zygote. In asexual reproduction, fragmentation occurs where the filaments break into smaller pieces that grow into new individuals.
- Sargassum is a genus of brown algae that is found in the Sargasso Sea. They are characterized by their large size and the presence of chlorophyll c in their chloroplasts.
- Basidiomycetes is a phylum of fungi that includes mushrooms, puffballs, and bracket fungi. Puffballs are a type of basidiomycete that are characterized by their spherical shape and the production of spores inside the fruiting body.
Therefore, option B is wrongly matched as Spirogyra does not have motile gametes.
Explanation:
- Nostoc is a genus of cyanobacteria that is commonly found in water bodies. They form colonies that are visible as slimy masses on the surface of the water. These colonies are called water blooms or blue-green algae blooms.
- Spirogyra is a genus of filamentous green algae. They are characterized by their spiral-shaped chloroplasts. Spirogyra reproduces both sexually and asexually. In sexual reproduction, non-motile gametes are produced that fuse to form a zygote. In asexual reproduction, fragmentation occurs where the filaments break into smaller pieces that grow into new individuals.
- Sargassum is a genus of brown algae that is found in the Sargasso Sea. They are characterized by their large size and the presence of chlorophyll c in their chloroplasts.
- Basidiomycetes is a phylum of fungi that includes mushrooms, puffballs, and bracket fungi. Puffballs are a type of basidiomycete that are characterized by their spherical shape and the production of spores inside the fruiting body.
Therefore, option B is wrongly matched as Spirogyra does not have motile gametes.
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